# Got unexpected results from perlin noise. Wondering what it is doing?

I was just messing around with perlin noise and got this. Wondering if anyone knows what it is or has seen it before.

Here is the code(LUA with love2d engine):

function love.load()
love.window.setMode( 1920, 1080, {fullscreen=false})
--Assuming you called the module perlin.lua
newperlin = require("perlin2")
--newperlin is a function that generates Perlin noise objects:

myperlin = newperlin()
--333 is seed
myperlin = newperlin(333)
mapHeight = 400
mapWidth = 400

--then, to create noise:
scale = 0.007
map = {}
for x = 0, mapWidth - 1 do
map[x] = {}
for y = 0, mapHeight - 1 do
map[x][y] = 0
map[x][y] = --[[map[x][y] + --]](myperlin:noise(x * scale, y
* scale) + 1) / 2.0 * 255.0
--The following lines change it from a cloud to a weird image
smin=0; smax=255
map[x][y] =  math.floor(( map[x][y] - (-0.5) ) * 255 / ( 0.5
- (-0.5) ) + 0)
end
end
end
function love.draw()
for x = 0, mapWidth - 1 do
for y = 0, mapHeight - 1 do
love.graphics.setColor(map[x][y], map[x][y], map[x][y], 255)
love.graphics.point(x,y)
end
end
end

function love.update()

end

function love.keyreleased(key)
if key == "escape" then
love.event.quit()
end
end


and here is perlin.lua: